A prelude to analysis of Redis memory-store

Over the last 13 years, Redis has become a popular memory store used by numerous dev-ops and software engineers. It is currently ranked as the most loved database on StackOverflow for the fifth consecutive year. The key principles behind Redis' architecture include simplicity, single-threaded design, and prioritizing low latency, high throughput, memory efficiency, high availability, strong consistency guarantees, and durability in its design goals. Despite its success, questions remain about how much more efficient Redis could be today if it adopted state-of-the-art algorithms and data structures, as well as whether a simpler user experience could be achieved by prioritizing product simplicity over implementation simplicity. The author believes that it is possible to significantly improve reliability, performance, and cost efficiency of Redis-like memory stores with different architectural principles aligned better with modern hardware systems.